Garages are used to store purchased or stolen cars. In order to save a vehicle in a garage, it must be parked in the garage. After it's been parked in the garage, it will be saved to that character's garage. Each of the three main characters will have their own library of cars.

By default, Trevor has two safehouses, and therefore two garages. Michael has one safehouse, and only one garage. Franklin has two safehouses, and two garages. Each character has a four car garage that is separate from their safehouse garage.

Marina Slips are used to store purchased or stolen boats. In order to save a Vehicle to a marina slip, it must be docked at the slip. After it's left there for a short period of time, it will be saved to that character's marina slip. Each of the three main characters will have their own library of boats.

By default, none of the characters own a marina slip. Marina slips can be purchased at Puerto Del Sol for $75,000 each.

Helipads are used to store purchased or stolen helicopters. In order to save a vehicle to a helipad, it must be landed on the helipad and left there for a short period of time. After it's been landed, it will be saved to that character's helipad. Each of the three main characters will have their own library of helicopters.

Hangars are used to store purchased or stolen airplanes. In order to save a vehicle to a hangar, it must be landed and taxied into the hangar. After it's been parked, it will be saved to that character's hangar. Each of the three main characters will have their own library of airplanes.